Crystallographic data of new ternary CeFeSi-type RTiGe (R=Y, Gd–Tm) compounds

Synthesis, Structure, and Properties of Scandium Dysprosium Antimonide ScDySb

“…No significant structural changes were observed at low temperatures, except for a decrease of lattice constants and displacement parameters, which is a result of the reduced thermal motion. The absence of structural chemical changes is not atypical, as can be seen using the example of the antiferromagnetic transition of isotypic TiTbSi [14,18], where neutron diffraction studies [18] indicate that the magnetic structure consists of ferromagnetic Tb double layers which are antiferromagnetically coupled along the c-axis, a picture, which seems to be consistent with the magnetic properties of ScDySb as well.…”

“…In the latter case, one (A), or two different metals (A1, A2) occupy the sites of F and Cl in PbFCl, while a metalloid (B), which is often a heavy element of group 14 or 15, substitute for Pb. Some interesting representatives of such anti-PbFCl type structures are: Cu 2 Sb [9], Fe 2 As [10], Sc 2 Sb [11], LiFeAs [12,13], TiREGe (RE = Y, Gd-Tm) [14].…”

Evidence for a metamagnetic transition in the heavy Fermion system CeTiGe

“…Therefore Kondo lattices with a quasi-two-dimensional structure are of high interest. In this context CeTiGe is an attractive compound: It crystallizes in the CeFeSi structure type which presents a stacking of Ce-Si-Fe2-Si-Ce layers leading to a clear 2D character [4]. Furthermore preliminary investigations performed by R. Welter et al [5] indicated the presence of a trivalent Ce 3+ state without magnetic order down to 4.2 K. Our recent detailed study of the physical properties down to 0.4 K established CeTiGe as a new paramagnetic heavy Fermion system with a Sommerfeld coefficient γ ≃ 0.3 J/(K 2 · mol) [6], being thus located on the non-magnetic side of the (quantum) critical point within a Doniach type phase diagram.…”

Structural, electronic and magnetic properties of RE2Ti3Si4 (RE=Gd, Tb, Er) compounds: A first principle study

“…Ti-Si alloys have excellent mechanical performance and casting properties (such as low melting point, narrow crystallization range and good fluidity), and thus are considered to be potential high-temperature structural materials [24][25][26]. It is well known that the ternary compounds RE-TM-X (RE = rare earth, TM = transition metal, X = Si or Ge) exhibit some interesting properties, such as heavy-fermion superconductivity, anomalous magnetism, Kondo behavior and/or intermediate valency, unfortunately, very few reports can be found except the work done by Morozkin et al [27][28][29][30][31][32] which mainly focus on the magnetic properties of these compounds. As a member of the RE-TM-X (RE = rare earth, TM = transition metal, X = Si or Ge) family ternary compounds, the RE 2 Ti 3 Si 4 (RE = Gd, Tb, Er) compounds have been experimentally investigated on their magnetic properties [28].…”